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51797482497 = 3271706911467
BaseRepresentation
bin110000001111010111…
…101101110000000001
311221200212002202001200
4300033113231300001
51322040123414442
635443451451413
73512406223335
oct601727556001
9157625082050
1051797482497
111aa70368282
12a056a56b69
134b6628ac37
14271534d7c5
1515325a234c
hexc0f5edc01

51797482497 has 24 divisors (see below), whose sum is σ = 75889719360. Its totient is φ = 34037508960.

The previous prime is 51797482487. The next prime is 51797482507. The reversal of 51797482497 is 79428479715.

51797482497 is a `hidden beast` number, since 5 + 1 + 79 + 74 + 8 + 2 + 497 = 666.

It is an interprime number because it is at equal distance from previous prime (51797482487) and next prime (51797482507).

It is not a de Polignac number, because 51797482497 - 210 = 51797481473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51797482487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4511358 + ... + 4522824.

It is an arithmetic number, because the mean of its divisors is an integer number (3162071640).

Almost surely, 251797482497 is an apocalyptic number.

It is an amenable number.

51797482497 is a deficient number, since it is larger than the sum of its proper divisors (24092236863).

51797482497 is a wasteful number, since it uses less digits than its factorization.

51797482497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18613 (or 18610 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 63.

The spelling of 51797482497 in words is "fifty-one billion, seven hundred ninety-seven million, four hundred eighty-two thousand, four hundred ninety-seven".

Divisors: 1 3 9 71 213 639 7069 11467 21207 34401 63621 103203 501899 814157 1505697 2442471 4517091 7327413 81060223 243180669 729542007 5755275833 17265827499 51797482497